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Area code 409 is a telephonearea code in theNorth American Numbering Plan (NANP) for theU.S. state ofTexas. The numbering plan area comprises theBeaumont andGalveston areas. It was created on March 19, 1983, in anarea code split ofarea code 713, the first since619 split from714 four months earlier. Initially, it consisted of a horseshoe-shaped area that almost completely surroundedHouston, but in 2000 it was divided into three sections. Area code 409 was retained by the eastern segment, while the central portion, centered onNacogdoches, receivedarea code 936 and the western portion centered onBryan–College Station, was assignedarea code 979.

The counties served by area code 409 areChambers,Galveston,Hardin,Jasper,Jefferson,Newton,Orange,Polk,Sabine,Trinity, andTyler.

This includes the following cities and towns:Anahuac,Beaumont,Bevil Oaks,Bon Wier,Bridge City,Bronson,Brookeland,Buna,Burkeville,Call,China,Colmesneil,Deweyville,Doucette,Evadale,Fannett,Fred,Galveston,Gilchrist,Groves,Hamshire,Hankamer,Hemphill,High Island,Hillister,Hitchcock,Honey Island,Jamaica Beach,Jasper,Kirbyville,Kountze,La Marque,LaBelle,Lumberton,Mauriceville,Milam,Nederland,Newton,Nome,Orange,Orangefield,Pine Forest,Pinehurst,Pineland,Pinewood Estates,Port Arthur,Port Bolivar,Port Neches,Rose City,Rose Hill Acres,Sabine Pass,Santa Fe,Silsbee,Sour Lake,Spurger,Stowell,Taylor Landing,Texas City,Tiki Island,Vidor,Village Mills,Wallisville,Warren,West Orange,Wiergate,Wildwood,Winnie, andWoodville.

Prior to October 2021, area code 409 had telephone numbers assigned for thecentral office code 988. In 2020,988 was designated nationwide as a dialing code for theNational Suicide Prevention Lifeline, which created a conflict for exchanges that permitseven-digit dialing. This area code was therefore scheduled to transition toten-digit dialing by October 24, 2021.^[1]

• List of Texas area codes

• "Area Code Maps".North American Numbering Plan Administrator.

• List of exchanges from AreaCodeDownload.com, 409 Area Code

• Telecommunications-related introductions in 1983
• Area codes in Texas
• Area codes in the United States
• Galveston, Texas

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• Short description matches Wikidata
• Articles needing additional references from November 2021
• All articles needing additional references
• Use mdy dates from September 2013